Figure S1 Linear relationships between (a) litterfall and (b) biomass increment and ANPP. Relationships were used to generate ANPP values when either component was unavialable in the literature.

Figure S2 ANPP versus MAT (a and b) and MAP (c and d) in the upland and lowland forest sites in the database.

Table S1 Maximum (Max.), minimum (Min.) and median values for the climate, carbon and nutrient cycling variables used in the analysis. The ‘uplands + lowland’ column represents calculated values for all sites in the database. The ‘lowlands’ column represents values from sites with MAT > 20.7 °C, and the ‘uplands’ column represents values from sites with MAT < 20.7 °C.

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